Results 251 to 260 of about 31,354 (292)

An analytical design model for wound rotor synchronous machines

2013 IEEE Electric Ship Technologies Symposium (ESTS), 2013
Optimization-based design of electric machinery over a large design space requires the use of computationally efficient models to predict machine behavior. In this work, an analytical design model is developed for wound rotor synchronous machines (WRSMs), a key technology for power generation in marine applications.
Omar Laldin, Scott D. Sudhoff, Steven Pekarek   +2 more
openaire   +1 more source

Durability of filament-wound composite flywheel rotors

Mechanics of Time-Dependent Materials, 2011
This paper predicts the durability of two types of flywheels, one assumes to fail in the radial direction and the other assumes to fail in the circumferential direction. The flywheel failing in the radial direction is a conventional filament-wound composite flywheel and the one failing in the circumferential direction is a tailor-made type.
openaire   +1 more source

Dual-rotor, radial-flux, toroidally wound, permanent-magnet machines

IEEE Transactions on Industry Applications, 2003
A novel machine family-dual-rotor, radial-flux, toroidally wound, permanent-magnet (RFTPM) machines-is proposed in order to substantially improve machine torque density and efficiency. After the principles of operation, configurations, and features are discussed, the machine design and optimization guidelines are given.
null Ronghai Qu, T.A. Lipo
openaire   +1 more source

Rotor inter-turn short circuit fault detection in wound rotor induction machines

The XIX International Conference on Electrical Machines - ICEM 2010, 2010
The aim of this paper is to develop a technique for detecting a real rotor inter-turn short-circuit fault in a wound rotor induction machine working as generator by using the spectral and the bispectral analysis. The stator currents provide interesting signatures since the rotor inter-turn short-circuit fault introduces new harmonics in the stator ...
A. Yazidi, H. Henao, G.A. Capolino, F. Betin   +3 more
openaire   +1 more source

Performance analysis of wound rotor induction motor subjected to rotor windings asymmetry

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
The aim of this paper is to analyze the performance of 3-phase wound rotor induction motor (WRIM) under rotor windings asymmetry. The behavior of WRIM were simulated under healthy and asymmetry conditions. With the aid of simulation results, variation of motor speed, electromagnetic torque, stator and rotor currents have been analyzed.
R. R. Abdel-Wahab, T. M. Abdo, H. H. Hanafy   +2 more
openaire   +1 more source

Static exciter for wound rotor induction machine

[Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society, 2002
Possible techniques of self-exciting a wound rotor induction machine are discussed. A practical controller based on the slip energy recovery principle in the wound rotor machine is investigated and compared with conventional methods of self-exciting and squirrel cage machine.
openaire   +1 more source

Detection of Rotor Eccentricity in Wound Rotor Induction Machines Using Pole-Specific Search Coils

IEEE Transactions on Magnetics, 2015
Condition monitoring is a standard method for scheduling maintenance and ensuring that catastrophic failures do not occur. It is used in many applications where there is high capital cost or the location is remote. Condition monitoring is increasingly used in renewable energy as stated in [1]-[4] and these mostly address the rotating equipment and in ...
D. G. Dorrell, A. Salah
openaire   +1 more source

Analysis of fiber reinforced filament wound rotors

2016
In dieser Arbeit wird das mechanische Verhalten von gewickelten faserverst rkten Rotoren analysiert, welche in Schwungradspeichern verwendet werden. Diese Art der Speicherung von elektrischer Energie ist eine kologisch und konomisch nachhaltige Technologie f r die dezentrale Energiespeicherung mit langen Lebenszyklen ohne Leistungseinbu en durch
openaire   +1 more source

Rotor Impedance Control of the Wound-Rotor Induction Motor

Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1959
W. Shepherd, G. R. Slemon
openaire   +1 more source

Haemostatic materials for wound healing applications

Nature Reviews Chemistry, 2021
Baolin Guo, Ruonan Dong, Yongping Liang
exaly